CVE-2026-69222High· 7.5▾ TwilightLiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.27.2, the join filter in src/filters/array.ts computes complexity from array.length and separator length instead of the total string length p…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 41.3 · likelihood 0.1 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via NVD
0.4%
Last analysed / modified upstream
LiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript. Prior to 10.27.2, the join filter in src/filters/array.ts computes complexity from array.length and separator length instead of the total string length produced by array.join(sep). The concat filter can cheaply double arrays of references, after which join materializes the referenced content while charging only for element count, allowing a template to exceed a configured memoryLimit by a large factor. The sibling array_to_sentence_string filter in src/filters/string.ts has the same accounting defect, and a crafted template can allocate toward V8's string or process memory limit and crash the process. This issue is fixed in version 10.27.2.
Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Affected packages:
liquidjs <= 10.27.1Patched in:
liquidjs 10.27.2Connected by shared product, vendor, weakness, or advisory.
CVE-2026-61556HighLiquidJS is a Shopify / GitHub Pages compatible template engine in pure JavaScript
CVE-2026-55575HighLiquidJS: `pop` filter bypasses `memoryLimit` accounting that its array-filter siblings enforce
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